This article explains overview on various health problems caused by cell phones, laptops and other gadgets while attending online class by students during pandemic period. To review the different ocular, neurological changes, psychological and stress induced in brainon students caused by electronic gadgets. According to this article reports pertaining to scientific literature survey, on various illness caused due to the online sessions and classes. All the available information of visual impairment and psychological behavior changes in children were collected from web sources and different published papers. This article emphasizes that most of visual and psychological illnesses on school childrenand students by attending the online mode classes. Here some information regard with those problems isillustrated. We can mainly understand the ill effects of the cellphones which can mainly spoil the student life and also it leads to the addiction.